Full Freeview on the Sandy Heath (Central Bedfordshire, England) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 52.130,-0.242 or 52°7'47"N 0°14'33"W |  | SG19 2NH |
The symbol shows the location of the Sandy Heath (Central Bedfordshire, England) transmitter which serves 920,000 homes. The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.
Are there any planned engineering works or unexpected transmitter faults on the Sandy Heath (Central Bedfordshire, England) mast?
Sandy Heath transmitter - Sandy Heath transmitter: Possible effect on TV reception week commencing 04/12/2023 Pixelation or flickering on some or all channels 
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which Freeview channels does the Sandy Heath transmitter broadcast?
If you have any kind of Freeview fault, follow this Freeview reset procedure first.Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which BBC and ITV regional news can I watch from the Sandy Heath transmitter?
BBC Look East (West) 1.0m homes 3.7%
from Cambridge CB4 0WZ, 29km east-northeast (65°)
to BBC Cambridge region - 4 masts.
70% of BBC East (East) and BBC East (West) is shared output
ITV Anglia News 1.0m homes 3.7%
from Norwich NR1 3JG, 119km east-northeast (60°)
to ITV Anglia (West) region - 5 masts.
All of lunch, weekend and 80% evening news is shared with Anglia (East)
How will the Sandy Heath (Central Bedfordshire, England) transmission frequencies change over time?
| 1965-80s | 1984-97 | 1997-98 | 1998-2011 | 2011-13 | 12 Feb 2020 | ||||
| VHF | A K T | K T | K T | W T | W T | ||||
| C6 | ITVwaves | ||||||||
| C21 | C4waves | C4waves | C4waves | +BBCB | BBCB | ||||
| C24 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
| C27 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
| C31 | BBC1waves | BBC1waves | BBC1waves | ||||||
| C32 | com7 | ||||||||
| C33 | SDN | ||||||||
| C34 | com8 | ||||||||
| C35 | _local | ||||||||
| C36 | ArqA | ||||||||
| C39 | C5waves | C5waves | |||||||
| C43 | _local | ||||||||
| C48 | ArqB | ArqB | |||||||
| C51tv_off | SDN | ||||||||
| C52tv_off | ArqA | ||||||||
| C55tv_off | com7tv_off | ||||||||
| C56tv_off | COM8tv_off |
tv_off Being removed from Freeview (for 5G use) after November 2020 / June 2022 - more
Table shows multiplexes names see this article;
green background for transmission frequencies
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W T
waves denotes analogue; digital switchover was 30 Mar 11 and 13 Apr 11.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-4 | 1000kW | |
| BBCA, D3+4, BBCB | (-7.4dB) 180kW | |
| SDN, ARQA, ARQB | (-7.7dB) 170kW | |
| com7 | (-13dB) 49.6kW | |
| com8 | (-13.1dB) 49.1kW | |
| Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D* | (-17dB) 20kW | |
| Analogue 5 | (-20dB) 10kW |
Which companies have run the Channel 3 services in the Sandy Heath transmitter area
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Sunday, 1 May 2011
S
Steve2:44 PM
... UK digital TV reception predictor
try this too. (LL145HD)
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J
John3:14 PM
I am getting somewhere I used a set top aerial did the reset/retune and I now have all channels I didn't realise I had lost radio channels as well! I put the outside aerial in back in and the HD disappears so what I have is too strong a signal and the Sony can't cope with it!
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S
Steve5:16 PM
Wrexham
John - sounds good!
Does the wolfbane link say you need only set-top? It is notoriously pessimistic.
Are you sure there is no amplifier on your rooftop?
If you want to continue using it you can get attenuators. Or you could play by simply holding the plug near but not touching the socket! Works for a good analogue signal - not tried on digital.
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Steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
J
John6:12 PM
Further update bypassed the Sky HD Digibox and now the Sony works on all Channels so somehow the box is causing corruption! at least the problem has been solved.
I can get all the HD channels on my finger Steve and we are 40 plus miles from the transmitter!
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S
Steve8:01 PM
Wrexham
John - Was your RF (aerial) input going through the Sky box? If so, might conflict, or even just be overamplified.
Just SCART leads should not affect your tuning AFAIK.
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Steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
J
John8:36 PM
Through the box Steve but when I got to the status of no picture I went to look at the signal the level was 100% but the quality was zero!!
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Monday, 2 May 2011
J
James10:23 AM
Norwich
Why does the picture on ESPN look poor compared with Sky Sports 1 & 2 on Freeview?
Yet Sky Sports 1 & 2 are on a similar mux which even more channels?
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James's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
J
James10:25 AM
Cambridge
Sorry previous post should be Sandy Heath transmitter in Cambridge
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James's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
S
Steve11:10 AM
Wrexham
John - suspect it is what they plug in that is poor, not the trransmission - seen other complaints about ESPN.
John - Could be that the Skybox is overamplifying the RF input. Or could be that the channel it is using to output its own signal is in conflict with one you need.
But can't see a need to have RF in or out of the skybox anyway.
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Steve's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
J
John12:18 PM
Without a Signal Level Meter it is an impossible task on the levels Steve but I suspect the Sky box will give no gain, and I strongly suspect the Sky box is corrupting the signal.
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